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CHAPS, Molecular Biology Grade - CAS 75621-03-3 - Calbiochem

CAS 75621-03-3 is a zwitterionic detergent that combines features of bile salts and N-alkyl sulfobetaines.

Synonym: 3-[(3-Cholamidopropyl)dimethylammonio]-1-propanesulfonate, CHAPS

  • CAS Number 75621-03-3

  • Empirical Formula (Hill Notation) C32H58N2O7S

  • Molecular Weight 614.88

  •  MDL number MFCD00012116

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Properties

Related Categories Biochemicals and Reagents, Detergents, Zwitterionic Detergents More...
Quality Level   100
assay   ≥98% (NMR)
form   crystalline powder
mol wt   micellar avg mol wt 6150
mfr. no.   Calbiochem®
storage condition   OK to freeze
  desiccated
storage conditions   +15C to +30C
aggregation number   10
color   white
CMC   6 - 10 mM
  6 mM (20-25°C)
transition temp   cloud point >100 °C
solubility   water: 1.0 M
foreign activity   DNase, RNase, and Protease, none detected
shipped in   ambient
SMILES string   C[C@H](CCC(=O)NCCC[N+](C)(C)CCCS([O-])(=O)=O)[C@H]1CC[C@H]2[C@@H]3[C@H](O)CC4C[C@H](O)CC[C@]4(C)[C@H]3C[C@H](O)[C@]12C
InChI   1S/C32H58N2O7S/c1-21(8-11-29(38)33-14-6-15-34(4,5)16-7-17-42(39,40)41)24-9-10-25-30-26(20-28(37)32(24,25)3)31(2)13-12-23(35)18-22(31)19-27(30)36/h21-28,30,35-37H,6-20H2,1-5H3,(H-,33,38,39,40,41)/t21-,22?,23-,24-,25+,26+,27-,28+,30+,31+,32-/m1/s1
InChI key   UMCMPZBLKLEWAF-RFCNGIAKSA-N

Description

General description

Conductivity (1.0 M, 24°C): <100 µmhos.

Non-denaturing zwitterionic detergent that combines features of bile salts and N-alkyl sulfobetaines. Better at solubilizing proteins than the structurally related carboxylic acid anions, and is more effective at breaking protein-protein interactions than either sodium cholate or TRITON X-100. Capable of solubilizing the opiate receptor to a state exhibiting reversible binding to opiates. Also capable of disaggregating P 450 to its monomeric form without denaturation. Has a small micellar molecular weight (6150 Daltons) and a high critical micellar concentration (6-10 mM). Can be removed from either gels or protein solutions by dialysis. Aggregation number: 4-14.

Zwitterionic detergent that combines features of bile salts and N-alkyl sulfobetaines. Better at solubilizing proteins than structurally-related carboxylic acid anions and is much more effective at breaking protein-protein interactions than either sodium cholate or TRITON X-100 Detergent. Capable of solubilizing the opiate receptor to a state exhibiting reversible binding of opiates. Also, capable of disaggregating cytochrome P450 to its monomeric form without denaturation. Has a small micellar molecular weight and a high critical micellar concentration and can be removed from either gels or protein solutions by dialysis across a membrane. Aggregation number: 4-14.

Packaging

1 g in Glass bottle

5, 10 g in Plastic ampoule

1 kg in Glass bottle

25, 250 g in Glass bottle

Application

CHAPS is a nondenaturing zwitterionic detergent for membrane biochemistry.
Useful for solubilizing membrane proteins and breaking protein-protein interactions. CHAPS’ small micellar molecular weight (6,150) and high critical micelle concentration (6-10 mM) allow it to be removed from samples by dialysis. It is also suitable for protein solubilization for isoelectric focusing and two-dimensional electrophoresis. CHAPS is commonly used for non-denaturing (without urea) IEF and has been shown to give excellent resolution of some subcellular preparations and plant proteins. Concentrations between 2-4% (w/v) are typically used in an IEF gel.

Warning

Toxicity: Harmful (C)

Reconstitution

Following reconstitution, store in the refrigerator (4°C). Stock solutions are stable for up to 6 months at 4°C.

Other Notes

Chen, Y., et al. 1992. Biochemistry 31, 2415.
Ofri, D., et al. 1992. J. Neurochem. 58, 628.
Ransom, R.W., et al. 1992. Biochem. Pharmacol. 43, 1823.
Simonds, W.F., et al. 1992. Proc. Natl. Acad. Sci. USA77, 4623.
Yannariello-Brown, J., and Weigel, P.H. 1992. Biochemistry31, 576.
Hjelmeland, L.M. 1980. Proc. Natl. Acad. Sci. USA77, 6368.
Simonds, W.F., et al. 1980. Proc. Natl. Acad. Sci. USA77, 4623.

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